@article{MEM_2020_49_a25,
     author = {Lazarov, Borislav},
     title = {On students{\textquoteright} achievements assessment in {Chernorizec} {Hrabar} {Tournament} and {TIMSS}},
     journal = {Mathematics and Education in Mathematics},
     pages = {229--233},
     publisher = {mathdoc},
     volume = {49},
     year = {2020},
     language = {bg},
     url = {http://geodesic.mathdoc.fr/item/MEM_2020_49_a25/}
}